<template>
  <div>
    <!-- 导航栏部分 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 主体部分 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList()"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格部分 -->
      <el-table :data="goodslist" style="width: 100%" stripe border>
        <el-table-column type="index" width="50"> </el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="115px">
        </el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="80px">
        </el-table-column>
        <el-table-column prop="add_time" label="添加时间" width="180px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dataFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="150px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
            ></el-button>
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页部分 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="this.queryInfo.pagenum"
        :page-sizes="[1, 3, 5, 10]"
        :page-size="this.queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="this.total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script type="text/ecmascript-6">
export default {
name:'',
  data() {
    return {
      //查询参数(商品列表数据)
      queryInfo:{
        //查询参数
        query:'',
        //当前页码
        pagenum:1,
        //每页显示条数
        pagesize:10,
      },
      //商品列表数据
      goodslist:[],
      //总数据
      total:0,

    }
  },
  created(){
    this.getGoodsList();
  },
  methods:{
    //获取商品列表数据
    async getGoodsList(){
        const {data:res}=await this.$http.get(`goods`,{params:this.queryInfo});
        if(res.meta.status!==200) return this.$message.error('获取商品列表数据失败');
        this.goodslist=res.data.goods;
        this.total=res.data.total;
    },
    //每页显示条数发生改变时
    handleSizeChange(newsize){
      this.queryInfo.pagesize=newsize;
      this.getGoodsList();
    },
    //当前页码发生改变时
    handleCurrentChange(newpage){
      this.queryInfo.pagenum=newpage;
      this.getGoodsList();
    },
    //点击删除按钮
    async removeById(ID){
      const result=await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err);
      if(result!=='confirm'){
        this.$message({
            type: 'info',
            message: '已取消删除'
          });          
      }
      const {data:res}=await this.$http.delete(`goods/${ID}`);
      if(res.meta.status!==200) return this.$message.error('删除商品失败');
      this.$message.success('删除商品成功');
      this.getGoodsList();
    },
    //点击添加商品按钮
    goAddPage(){
      this.$router.push('/goods/add');
    }
  },
  components: {

  }
}
</script>

<style lang="less" scoped>
</style>
